Hallo!
I couldn't find it in the doc. I have an abstraction with 2 arguments : [abstraction 1 2], inside the abstraction I send $1 to [print] and it returns 1. That's perfect but instead of the [print] I want a number box. When I try nothing happens. How can I get my variable in a number box?
I don't know if I understand you correct, but maybe you mean this:
[bang( | [f $1] | [numberbox]
LG Georg